US6020177A - Heptaprenyl diphosphate-synthetase - Google Patents
Heptaprenyl diphosphate-synthetase Download PDFInfo
- Publication number
- US6020177A US6020177A US09/035,754 US3575498A US6020177A US 6020177 A US6020177 A US 6020177A US 3575498 A US3575498 A US 3575498A US 6020177 A US6020177 A US 6020177A
- Authority
- US
- United States
- Prior art keywords
- leu
- amino acid
- seq
- ala
- dna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/10—Transferases (2.)
- C12N9/1085—Transferases (2.) transferring alkyl or aryl groups other than methyl groups (2.5)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/8215—Microorganisms
- Y10S435/822—Microorganisms using bacteria or actinomycetales
- Y10S435/832—Bacillus
Definitions
- the present invention relates to heptaprenyl diphosphate (hereunder sometimes abbreviated to "HDP") synthetase of Bacillus stearothermophilus origin, to DNA encoding the enzyme, to an expression vector containing the DNA, to a host transformed by the expression vector, to a method of producing heptaprenyl diphosphate-synthesizing enzyme by the host, and to a method of producing heptaprenyl diphosphate using the enzyme or host.
- HDP heptaprenyl diphosphate
- HDP synthesized from condensation reaction of 4 molecules of isopentenyl diphosphate and 1 molecule of farnesyl diphosphate by HDP-synthetase, is an important: biosynthetic intermediate of isoprenoids such as prenylquinone.
- HDP-synthetase which is categorized into prenyl transferase, is known to be present in some microorganisms such as Bacillus subtilis (J. Biol. Chem. 255, p.4539-4543 (1980)), its amino acid sequence and the DNA sequence of the gene encoding it have not been known.
- the present invention is aimed at providing HDP synthetase of Bacillus stearothermophilus origin, which was hitherto unknown in the species, DNA encoding the enzyme, and a method of production of the recombinant HDP synthetase using the DNA.
- the present inventors have been the first to succeed in cloning an HDP synthetase gene of Bacillus stearothermophilus origin, by the PCR method using synthesized primers designed from a portion of the known sequence of prenyl transferase, following hybridization using PCR amplified fragments as probe and measuring the expressed activity of the gene expression products.
- the present invention provides a protein of Bacillus stearothermophilus origin having heptaprenyl diphosphate synthetase activity, which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 220th amino acid Gly of Sequence No. 1, (SEQ ID NO.1) or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence; a peptide with the amino acid sequence from the 1st amino acid Met to the 234th amino acid Arg of Sequence No. 2, (SEQ.
- the present invention also provides a peptide of Bacillus stearothermophilus origin, which has the amino acid sequence from the 1st amino acid Met to the 220th amino acid Gly of Sequence No. 1 (SEQ ID NO.1), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
- the present invention further provides a peptide of Bacillus stearothermophilus origin, which has the amino acid sequence from the 1st amino acid Val to the 323rd amino acid Tyr of Sequence No. 3 (SEQ ID NO.3), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
- the present invention further provides a protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity, which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 220th amino acid Gly of Sequence No. 1 (SEQ. ID NO.1), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence; and a peptide with the amino acid sequence from the 1st amino acid Val to the 323rd amino acid Tyr of Sequence No. 3 (SEQ ID NO.3), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
- a protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 220th amino acid Gly of Sequence No. 1 (
- the present invention further provides a protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity, which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 220th amino acid Gly of Sequence No. 1 (SEQ ID NO.1), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence; and a peptide with the amino acid sequence from the 1st amino acid Met to the 234th amino acid Arg of Sequence No. 2 (SEQ ID NO.2), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
- a protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 220th amino acid Gly of Sequence No. 1 (S
- the present invention further provides a protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity, which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 234th amino acid Arg of Sequence No. 2 (SEQ ID NO.2), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence; and a peptide with the amino acid sequence from the 1st amino acid Val to the 323rd amino acid Tyr of Sequence No. 3 (SEQ ID NO.3), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
- a protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 234th amino acid Arg of Sequence No. 2 (S
- the present invention further provides DNA encoding the above-mentioned protein and various peptides.
- the present invention further provides an expression vector comprising the above-mentioned DNA.
- the present invention further provides a host transformed by the above-mentioned expression vector.
- the present invention further provides a method of producing heptaprenyl diphosphate synthetase which is characterized by culturing the above-mentioned host, and collecting heptaprenyl diphosphate synthetase from the cultured product.
- the present invention further provides a method of producing heptaprenyl diphosphate which is characterized by culturing the above-mentioned transformant, and collecting heptaprenyl diphosphate from the cultured product.
- the present invention further provides a method of producing heptaprenyl diphosphate which is characterized by reacting the above-mentioned enzyme with a substrate.
- FIG. 1 shows the positional relationships and restriction enzyme maps for plasmids pAC2, pPR2, pTL6, pTLD9, pTLD17 and pTLD7 of the present invention.
- FIG. 2 is a thin layer radiochromatigram of the reaction mixture prepared by incubation of isopentenyl diphospate and farnesyl diphosphate with expression product of a DNA fragment of the present invention.
- the open reading frame portions of nucleotide sequences of DNA cloned from Bacillus stearothermophilus which express heptaprenyl diphosphate synthetase activity are shown as SEQ ID NOS.1 to 3.
- ORF open reading frames
- the first open reading frame (ORFI) is assumed to begin at the ATG coding for the 1st amino acid Met of SEQ ID NO.1 and to end with the GGG coding for the 220th Gly. However, it may possibly begin at the ATG coding for the 19th amino acid Met, the ATG coding for the 20th amino acid Met, or the ATG coding for the 22nd amino acid Met.
- the second open reading frame (ORFII) is assumed to begin at the ATG coding for the 1st amino acid Met of SEQ ID NO.2 and to end with the CGG coding for the 234th amino acid Arg. However, this ORFII may possibly begin at the ATG coding for the 23rd amino acid Met of the amino acid sequence.
- the third open reading frame (ORFIII) is assumed to begin at the GTG coding for the 1st amino acid Val of SEQ ID NO.3, and to end with the TAT coding for the 323rd amino acid Tyr. However, this ORFIII may possibly begin at the ATG coding for the 4th amino acid Met or the ATG coding for the 9th amino acid Met.
- nucleotide AACG is located between the translation termination codon TAG at the 3' end of ORFI and the translation initiation codon ATG (Met) of ORFII
- nucleotide GTTAAG is located between the translation termination codon TGA of ORFII and the translation initiation codon GTG (Val) of ORFIII.
- DNA comprising all of ORFI, ORFII and ORFIII, heptaprenyl diphosphate synthetase consisting of the peptide encoded thereby, and a method for its production.
- the present invention also provides DNA containing ORFI and ORFIII but not containing ORFII in its complete form, a peptide having heptaprenyl diphosphate synthetase activity which is expressed by that DNA, and a method for its production.
- the present invention further provides DNA containing ORFI and ORFII, or ORFII and ORFIII but not containing any other ORF in its complete form, a peptide expressed thereby, and a method for its production.
- Plant-derived enzymes sometimes differ in a few amino acids depending on the variety of plants from which they are derived, and often differ in a few amino acids by natural mutations.
- the native activity of an enzyme is sometimes maintained even upon artificial mutation on the amino acid sequence. Consequently, the present invention also encompasses, in addition to peptides having the amino acid sequences represented by SEQ ID NOS.1 to 3, also peptides with amino acid sequences resulting from variations of the amino acid sequences represented by SEQ ID NOS.1 to 3 by means of a substitution, deletion and/or addition of one or a few, for example 5 or 10, amino acids, providing that the peptides are still have the enzyme activity.
- the present invention further provides DNA encoding a peptide mutated in the manner described above, as well as a method of producing the mutated peptide.
- the DNA of the present invention may be cloned from Bacillus stearothermophilus.
- ORFIII, ORFI and ORFII or ORFII and ORFIII, and not containing any other ORF in its complete form may be obtained by cutting full-length DNA using restriction endonucleases which cut within, for example, other ORFs outside of the aimed ORF without cutting within the latter.
- DNA encoding a mutated peptide may be obtained by the site-specific mutagenesis using, for example, a mutagenic primer.
- each individual ORF of the present invention is not especially long, and thus may be easily synthesized by a person skilled in the art by conventional DNA synthesis methods.
- the present invention further provides expression vectors comprising the DNA as described above, hosts transformed by the expression vectors, and a method of producing the enzyme or peptides of the present invention using these hosts.
- the expression vector includes an origin of replication, the expression regulating sequence, etc., which differ depending on the host.
- the host may be a prokaryotic organism, for example a bacterium such as an E. coli, or Bacillus such as Bacillus subtilis; a eukaryotic organism, for example yeast, a fungus an example of which is S. cerevisiae belonging to the genus Saccharomyces, or fungus an example of which is a mold such as A. niger or A. oryzae belonging to the genus Aspergillus; animal cells such as cultured silk worm cells or cultured higher animal cells, for example CHO cells. Plant cells may also be used as hosts.
- heptaprenyl diphosphate synthase by culturing a host transformed with DNA of the present invention, which accumulates the enzyme in the culture, and recovering it.
- heptaprenyl diphosphate may also be produced by allowing HDP synthetase produced by the method of the present invention to react with isopentenyl diphosphate and allylic diphosphate such as farnesyl diphosphate acid as substrates.
- E. coli as a host for an example, there are known gene expression regulating mechanism in the process of transcription of mRNA from DNA, the process of translation of protein from mRNA, etc.
- promoter sequences which regulate mRNA synthesis there are known, in addition to naturally occurring sequences (for example, lac, trp, bla, lpp, P L , P R , ter, T3, T7, etc.), also mutants thereof (for example, lacUV5) and sequences obtained by artificially fusing natural promoter sequences (for example, tac, trc, etc.), and these may also be used according to the present invention.
- sequences capable of regulating ability to synthesize protein from mRNA As sequences capable of regulating ability to synthesize protein from mRNA, the importance of the ribosome-binding site (GAGG and similar sequences) and the distance to the initiation codon ATG is already known. It is also well known that terminator sequences which govern completion of transcription at the 3' end (for example, vectors including rrnBT 1 T 2 are commercially available from Pharmacia Co.) affect the efficiency of protein synthesis in recombinants.
- Vectors which may be used to prepare the recombinant vectors of the present invention may be commercially available ones, or they may be any of a variety of derived vectors, depending on the purpose.
- pBR322, pBR327, pKK223-3, pKK233-2, pTrc99, etc. which carry the pMB1-derived replicon
- pUC18, pUC19, pUC118, pUC119, pHSG298, pHSG396, etc. which have been modified for increased number of copies
- pACYC177, pACYC184, etc. which carry the p15A-derived replicon
- plasmids derived from pSC101, ColE1, R1 or F factor plasmids derived from pSC101, ColE1, R1 or F factor.
- gene introduction is also possible by way of virus vectors such as ⁇ -phage and M13 phage, and transposons.
- virus vectors such as ⁇ -phage and M13 phage, and transposons.
- pUB110 available from Sigma Co.
- pHY300PLK available from Takara Shuzo.
- pTrc99 (available from Pharmacia Co.) is preferred as a vector including, in addition to the ampicillin resistance gene as a selective marker, Ptrc and lacI q as a promoter and controlling gene, the sequence AGGA as a ribosome-binding site, and rrnBT 1 T 2 as the terminator, and having an expression regulating function on the HDP-synthesizing enzyme gene.
- a DNA fragment coding for HDP synthetase and if necessary a DNA fragment with the function of expression regulation on the gene for the above-mentioned enzyme may be accomplished by a known method using an appropriate restriction endonuclease and ligase. Specifically the method described below may be conveniently followed.
- pTL6 may be mentioned as a definite plasmid of the present invention prepared in this manner.
- microorganisms for the gene introduction by such recombinant vectors there may be used Escherichia coli, as well as microorganisms belonging to the genus Bacillus.
- the transformation may also be carried out by a conventional method, for example the CaCl 2 method or protoplast method described in Molecular Cloning (J. Sambrook, E. F. Fritsch, T. Maniatis, published by Cold Spring Harbor Laboratory Press) or DNA Cloning Vol. I-III (ed. by D. M. Glover, published by IRL PRESS), etc.
- a representative transformant according to the present invention which may be obtained is pTL6/JM109.
- HDP synthase heptaprenyl diphosphate synthase
- Lysozyme is preferably used as the cytolytic enzyme, and ultrasonic waves are preferably used for physical treatment. Most of the E. coli-derived protein may be removed as insoluble deposit by heating at about 55° C.
- any or a combination of gel filtration, ion exchange, hydrophobic, reverse phase, affinity or other type of chromatography, or ultrafiltration may be available.
- a reagent to stabilize the desired enzyme may be combined with the treatment solution, for example, a reducing agent such as ⁇ -mercaptoethanol or dithiothreitol, protective agent against proteases, such as PMSF or BSA, or metal ion such as magnesium.
- a reducing agent such as ⁇ -mercaptoethanol or dithiothreitol
- protective agent against proteases such as PMSF or BSA
- metal ion such as magnesium
- HDP synthetase activity may be measured, for example, in the manner described hereunder, it is recommended that the isolation and purification of the enzyme be performed while confirming the activity of the enzyme using the assay reaction solution employed in f) in Example 1 hereunder.
- the experiment was carried out basically in accordance with Molecular Cloning, DNA Cloning and the Takara Shuzo Catalog, mentioned previously. Most of the enzymes used were purchased from Takara Shuzo.
- the Bacillus stearothermophilus used was the known bacterium stored at the American Type Culture Collection (ATCC). Strain ATCC 10149 was used for this experiment.
- Culturing was performed in LB medium (1% tryptone, 0.5% yeast extract, 1% NaCl) at 55° C., and the cells were collected. After suspension in a lysis buffer, lysozyme (chicken albumen-derived, product of Sigma Co.) was added to 10 mg/ml. After lysis, 1/10 volume of 1M Tris•HCl (pH 8.0), 1/10 volume of 10% SDS and 1/50 volume of 5 M NaCl were added. Proteinase K (product of Sigma Co.) was added to 10 mg/ml, and the mixture was heated to 50° C.
- lysozyme chicken albumen-derived, product of Sigma Co.
- the chromosomal DNA was subjected to partial digestion with Sau3AI, and the PCR (polymerase chain reaction) was conducted with combinations of synthetic DNA P1 and P4, P1 and P6, P1 and P8, P2 and P4, P2 and P6, P2 and P8, P9 and P11, P9 and P4, P9 and P6, P9 and P8, P9 and P13, P1 and P11, P2 and P11, P12 and P4, P12 and P6, P12 and P8, P12 and P13, P1 and P13, P2 and P13, P10 and P4, P10 and p6, P10 and P8, and P10 and P13.
- the PCR product of the P10 and P8 combination was linked with the HincII digestion product of plasmid pUC118 (purchased from Takara Shuzo) using T4DNA ligase, and E. coli JM109 was transformed. Plasmids were prepared by the alkali SDS method, and the DNA sequences of 27 clones were analyzed with an Applied Biosystems 373A fluorescent DNA sequencer. One of the sequences was referred as pCR64.
- c-1) A DNA fragment consisting of an approximately 500 bp pCR64 digestion product by restriction endonucleases KpnI and HindIII was labelled with DIG using a DIG DNA labeling kit (purchased from BOEHRINGER MANNHEIM). The instructions in the kit manual were followed.
- the chromosomal DNA was digested with restriction endonuclease AccI, and upon Southern hybridization using the probe from c-1), a band was detected in the position of about 3 kbp.
- the DNA fragment of about 3 kbp was isolated by agarose gel electrophoresis and treated with T4 DNA polymerase. These were linked with the SmaI digestion product of plasmid pUC18 using T4 DNA ligase, and E. coli JM109 was transformed.
- the library prepared in c-2) was screened with the probe prepared in c-1). Detection was made using a DIG DNA detection kit (purchased from BOEHRINGER MANNHEIM) and plasmid pAC2 was obtained. The instructions in the kit manual were followed. DNA sequence of the inserted gene of about 2.5 kbp was analyzed with an Applied Biosystems 373A fluorescent sequencer.
- the gene library of c-2) was subjected to PCR using a synthetic DNA primer P64-4 (Sequence No. 14 (SEQ ID NO.14)) prepared based on the DNA sequence obtained in c-3) and M13 Primer RV (purchased from Takara Shuzo).
- the amplification product was inserted into pT7 Blue T-Vector (purchased from Novagen) to obtain pPR2.
- the E. coli JM105 transformed with pTL6 was cultured overnight in 50 ml of LB medium containing 50 ⁇ g/ml of ampicillin, and the cells were collected. These were suspended in 4 ml of lysis buffer and disrupted with ultrasonic waves. Heating was performed at 55° C. for 1 hour to inactivate the E. coli-derived prenyl transferase, and the E. coli-derived denatured protein was removed by centrifugation and the supernatant was used for the assay. The assay reaction mixture was allowed to react for 1 hour or 14 hours at 55° C. The reaction mixture was extracted with 1-butanol, and the radioactivity was measured using a liquid scintillation counter.
- the 1-butanol extract obtained from the above-mentioned reaction of JM105 carrying pTL6 was hydrolyzed and analyzed by thin-layer chromatography (TLC).
- TLC thin-layer chromatography
- E. coli normally has no heptaprenyl transferases or prenyl transferase with activity at 55° C.
- E. coli transformed with pTL6 is able to synthesize heptaprenyl diphosphate. Also, the fact that the activity is present at 55° C. indicates that the Bacillus stearothermophilus-derived prenyl transferase encoded by pTL6 is highly thermostable. This also shows that the recombinant is useful for producing stable heptaprenyl diphosphate.
- pTL6 had a gene insert of about 3 kbp, which contained three ORFs.
- plasmid pTLD9 by deletion of ORFI
- plasmid pTLD17 by deletion of OFRII
- plasmid pTLD7 by deletion of ORFIII
- activity was found for pTL6, pTLD9 and pTLD17.
- 1-Butanol extracts of reaction products of pTL6 and pTLD17 were hydrolyzed and analyzed by TLC, and the produced isoprenoid was confirmed to be heptaprenyl diphosphate.
- DNA sequences coding for heptaprenyl diphosphate synthetase enzyme of Bacillus stearothermophilus origin obtained by incorporating the DNA sequences into expression vectors which are then used to transform appropriate E. coli strains, produce safe substances with heptaprenyl diphosphate synthetase activity and heptaprenyl diphosphate.
Abstract
Heptaprenyl diphosphate (HDP)-synthetase derived from Bacillus stearothermophilus which enzymes have the amino acid sequences shown as SEQ ID NOs: 1 to 3; 1 and 2; 2 and 3; or 1 and 3, DNA encoding them, and a method of producing the enzymes.
According to the invention it is possible to industrially produce HDP-synthesizing enzyme and HPD.
Description
This is a division of application Ser. No. 08/506,404 filed Jul. 24, 1995 now U.S. Pat. No. 5,773,265.
1. Field of Invention
The present invention relates to heptaprenyl diphosphate (hereunder sometimes abbreviated to "HDP") synthetase of Bacillus stearothermophilus origin, to DNA encoding the enzyme, to an expression vector containing the DNA, to a host transformed by the expression vector, to a method of producing heptaprenyl diphosphate-synthesizing enzyme by the host, and to a method of producing heptaprenyl diphosphate using the enzyme or host.
2. Related Art
HDP, synthesized from condensation reaction of 4 molecules of isopentenyl diphosphate and 1 molecule of farnesyl diphosphate by HDP-synthetase, is an important: biosynthetic intermediate of isoprenoids such as prenylquinone. Although HDP-synthetase, which is categorized into prenyl transferase, is known to be present in some microorganisms such as Bacillus subtilis (J. Biol. Chem. 255, p.4539-4543 (1980)), its amino acid sequence and the DNA sequence of the gene encoding it have not been known.
Genes coding for other prenyl transferase are known, farnesyl diphosphate synthetase ([2.5.1.1.] J. Biol. Chem. 265, p.4607-4614 (1990)), geranylgeranyl diphosphate synthetase (Proc. Natl. Acad. Sci. USA, 89, p.6761-6764). However, the tertiary structures of the known prenyl transferases are homodimers which comprise two identical subunits, and it is different from the peculiar heterodimer of Bacillus subtilis HDP synthetase (FEBS Lett. 161, 257-260 (1983)). Therefore, absolutely no data exists regarding homology between the amino acid sequences of the former two and the latter.
Consequently, the present invention is aimed at providing HDP synthetase of Bacillus stearothermophilus origin, which was hitherto unknown in the species, DNA encoding the enzyme, and a method of production of the recombinant HDP synthetase using the DNA.
With the aim of accomplishing the above-mentioned object, the present inventors have been the first to succeed in cloning an HDP synthetase gene of Bacillus stearothermophilus origin, by the PCR method using synthesized primers designed from a portion of the known sequence of prenyl transferase, following hybridization using PCR amplified fragments as probe and measuring the expressed activity of the gene expression products.
Thus, the present invention provides a protein of Bacillus stearothermophilus origin having heptaprenyl diphosphate synthetase activity, which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 220th amino acid Gly of Sequence No. 1, (SEQ ID NO.1) or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence; a peptide with the amino acid sequence from the 1st amino acid Met to the 234th amino acid Arg of Sequence No. 2, (SEQ. ID NO.2) or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence; and a peptide with the amino acid sequence from the 1st amino acid Val to the 323rd amino acid Tyr of Sequence No. 3 (SEQ ID NO.3), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
The present invention also provides a peptide of Bacillus stearothermophilus origin, which has the amino acid sequence from the 1st amino acid Met to the 220th amino acid Gly of Sequence No. 1 (SEQ ID NO.1), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
The present invention further provides a peptide of Bacillus stearothermophilus origin, which has the amino acid sequence from the 1st amino acid Val to the 323rd amino acid Tyr of Sequence No. 3 (SEQ ID NO.3), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
The present invention further provides a protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity, which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 220th amino acid Gly of Sequence No. 1 (SEQ. ID NO.1), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence; and a peptide with the amino acid sequence from the 1st amino acid Val to the 323rd amino acid Tyr of Sequence No. 3 (SEQ ID NO.3), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
The present invention further provides a protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity, which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 220th amino acid Gly of Sequence No. 1 (SEQ ID NO.1), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence; and a peptide with the amino acid sequence from the 1st amino acid Met to the 234th amino acid Arg of Sequence No. 2 (SEQ ID NO.2), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
The present invention further provides a protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity, which comprises a peptide with the amino acid sequence from the 1st amino acid Met to the 234th amino acid Arg of Sequence No. 2 (SEQ ID NO.2), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence; and a peptide with the amino acid sequence from the 1st amino acid Val to the 323rd amino acid Tyr of Sequence No. 3 (SEQ ID NO.3), or an amino acid sequence resulting from a substitution, deletion or addition of one or a few amino acids in the amino acid sequence.
The present invention further provides DNA encoding the above-mentioned protein and various peptides.
The present invention further provides an expression vector comprising the above-mentioned DNA.
The present invention further provides a host transformed by the above-mentioned expression vector.
The present invention further provides a method of producing heptaprenyl diphosphate synthetase which is characterized by culturing the above-mentioned host, and collecting heptaprenyl diphosphate synthetase from the cultured product.
The present invention further provides a method of producing heptaprenyl diphosphate which is characterized by culturing the above-mentioned transformant, and collecting heptaprenyl diphosphate from the cultured product.
The present invention further provides a method of producing heptaprenyl diphosphate which is characterized by reacting the above-mentioned enzyme with a substrate.
FIG. 1 shows the positional relationships and restriction enzyme maps for plasmids pAC2, pPR2, pTL6, pTLD9, pTLD17 and pTLD7 of the present invention.
FIG. 2 is a thin layer radiochromatigram of the reaction mixture prepared by incubation of isopentenyl diphospate and farnesyl diphosphate with expression product of a DNA fragment of the present invention.
The open reading frame portions of nucleotide sequences of DNA cloned from Bacillus stearothermophilus which express heptaprenyl diphosphate synthetase activity are shown as SEQ ID NOS.1 to 3. There are 3 open reading frames (ORF). The first open reading frame (ORFI) is assumed to begin at the ATG coding for the 1st amino acid Met of SEQ ID NO.1 and to end with the GGG coding for the 220th Gly. However, it may possibly begin at the ATG coding for the 19th amino acid Met, the ATG coding for the 20th amino acid Met, or the ATG coding for the 22nd amino acid Met.
The second open reading frame (ORFII) is assumed to begin at the ATG coding for the 1st amino acid Met of SEQ ID NO.2 and to end with the CGG coding for the 234th amino acid Arg. However, this ORFII may possibly begin at the ATG coding for the 23rd amino acid Met of the amino acid sequence. The third open reading frame (ORFIII) is assumed to begin at the GTG coding for the 1st amino acid Val of SEQ ID NO.3, and to end with the TAT coding for the 323rd amino acid Tyr. However, this ORFIII may possibly begin at the ATG coding for the 4th amino acid Met or the ATG coding for the 9th amino acid Met.
In the DNA containing the cloned ORFI-III, the nucleotide AACG is located between the translation termination codon TAG at the 3' end of ORFI and the translation initiation codon ATG (Met) of ORFII, and the nucleotide GTTAAG is located between the translation termination codon TGA of ORFII and the translation initiation codon GTG (Val) of ORFIII.
The full-length DNA expression product had the strongest heptaprenyl diphosphate synthetase activity and the expression products of ORFI and ORFIII, ORFI and ORFII, and ORFII and ORFIII also showed heptaprenyl diphosphate synthetase activity. Consequently, according to one embodiment of the present invention, there are provided DNA comprising all of ORFI, ORFII and ORFIII, heptaprenyl diphosphate synthetase consisting of the peptide encoded thereby, and a method for its production.
The present invention also provides DNA containing ORFI and ORFIII but not containing ORFII in its complete form, a peptide having heptaprenyl diphosphate synthetase activity which is expressed by that DNA, and a method for its production. The present invention further provides DNA containing ORFI and ORFII, or ORFII and ORFIII but not containing any other ORF in its complete form, a peptide expressed thereby, and a method for its production.
Plant-derived enzymes sometimes differ in a few amino acids depending on the variety of plants from which they are derived, and often differ in a few amino acids by natural mutations. In addition, the native activity of an enzyme is sometimes maintained even upon artificial mutation on the amino acid sequence. Consequently, the present invention also encompasses, in addition to peptides having the amino acid sequences represented by SEQ ID NOS.1 to 3, also peptides with amino acid sequences resulting from variations of the amino acid sequences represented by SEQ ID NOS.1 to 3 by means of a substitution, deletion and/or addition of one or a few, for example 5 or 10, amino acids, providing that the peptides are still have the enzyme activity.
The present invention further provides DNA encoding a peptide mutated in the manner described above, as well as a method of producing the mutated peptide.
As will be explained in detail by way of the examples, the DNA of the present invention may be cloned from Bacillus stearothermophilus. Also, DNA containing any one of ORFI, ORFII and ORFIII, all three, or ORFI and. ORFIII, ORFI and ORFII or ORFII and ORFIII, and not containing any other ORF in its complete form, may be obtained by cutting full-length DNA using restriction endonucleases which cut within, for example, other ORFs outside of the aimed ORF without cutting within the latter. Alternatively, DNA encoding a mutated peptide may be obtained by the site-specific mutagenesis using, for example, a mutagenic primer.
Furthermore, once the amino acid sequence of one peptide is determined, it is possible to define a proper nucleotide sequence coding therefor, which then allows chemical synthesis of the DNA by conventional DNA synthesis methods. Each individual ORF of the present invention is not especially long, and thus may be easily synthesized by a person skilled in the art by conventional DNA synthesis methods.
The present invention further provides expression vectors comprising the DNA as described above, hosts transformed by the expression vectors, and a method of producing the enzyme or peptides of the present invention using these hosts.
The expression vector includes an origin of replication, the expression regulating sequence, etc., which differ depending on the host. The host may be a prokaryotic organism, for example a bacterium such as an E. coli, or Bacillus such as Bacillus subtilis; a eukaryotic organism, for example yeast, a fungus an example of which is S. cerevisiae belonging to the genus Saccharomyces, or fungus an example of which is a mold such as A. niger or A. oryzae belonging to the genus Aspergillus; animal cells such as cultured silk worm cells or cultured higher animal cells, for example CHO cells. Plant cells may also be used as hosts.
According to the present invention, as will be shown in the examples, it is possible to produce heptaprenyl diphosphate synthase by culturing a host transformed with DNA of the present invention, which accumulates the enzyme in the culture, and recovering it. Also, according to the present invention, heptaprenyl diphosphate may also be produced by allowing HDP synthetase produced by the method of the present invention to react with isopentenyl diphosphate and allylic diphosphate such as farnesyl diphosphate acid as substrates.
Referring to the use of E. coli as a host for an example, there are known gene expression regulating mechanism in the process of transcription of mRNA from DNA, the process of translation of protein from mRNA, etc. As promoter sequences which regulate mRNA synthesis, there are known, in addition to naturally occurring sequences (for example, lac, trp, bla, lpp, PL, PR, ter, T3, T7, etc.), also mutants thereof (for example, lacUV5) and sequences obtained by artificially fusing natural promoter sequences (for example, tac, trc, etc.), and these may also be used according to the present invention.
As sequences capable of regulating ability to synthesize protein from mRNA, the importance of the ribosome-binding site (GAGG and similar sequences) and the distance to the initiation codon ATG is already known. It is also well known that terminator sequences which govern completion of transcription at the 3' end (for example, vectors including rrnBT1 T2 are commercially available from Pharmacia Co.) affect the efficiency of protein synthesis in recombinants.
Vectors which may be used to prepare the recombinant vectors of the present invention may be commercially available ones, or they may be any of a variety of derived vectors, depending on the purpose. As examples there may be mentioned pBR322, pBR327, pKK223-3, pKK233-2, pTrc99, etc. which carry the pMB1-derived replicon; pUC18, pUC19, pUC118, pUC119, pHSG298, pHSG396, etc. which have been modified for increased number of copies; pACYC177, pACYC184, etc. which carry the p15A-derived replicon; and plasmids derived from pSC101, ColE1, R1 or F factor.
In addition to plasmids, gene introduction is also possible by way of virus vectors such as λ-phage and M13 phage, and transposons. For gene introduction to microorganisms other than E. coli, there is known gene introduction to the genus Bacillus by pUB110 (available from Sigma Co.) and pHY300PLK (available from Takara Shuzo). These vectors are described in Molecular Cloning (J. Sambrook, E. F. Fritsch, T. Maniatis, published by Cold Spring Harbor Laboratory Press), Cloning Vector (P. H. Pouwels, B. E. Enger/Valk, W. J. Brammar, published by Elsevier), and various company catalogs.
In particular, pTrc99 (available from Pharmacia Co.) is preferred as a vector including, in addition to the ampicillin resistance gene as a selective marker, Ptrc and lacIq as a promoter and controlling gene, the sequence AGGA as a ribosome-binding site, and rrnBT1 T2 as the terminator, and having an expression regulating function on the HDP-synthesizing enzyme gene.
The incorporation into these vectors of a DNA fragment coding for HDP synthetase and if necessary a DNA fragment with the function of expression regulation on the gene for the above-mentioned enzyme, may be accomplished by a known method using an appropriate restriction endonuclease and ligase. Specifically the method described below may be conveniently followed. pTL6 may be mentioned as a definite plasmid of the present invention prepared in this manner.
As microorganisms for the gene introduction by such recombinant vectors, there may be used Escherichia coli, as well as microorganisms belonging to the genus Bacillus. The transformation may also be carried out by a conventional method, for example the CaCl2 method or protoplast method described in Molecular Cloning (J. Sambrook, E. F. Fritsch, T. Maniatis, published by Cold Spring Harbor Laboratory Press) or DNA Cloning Vol. I-III (ed. by D. M. Glover, published by IRL PRESS), etc.
A representative transformant according to the present invention which may be obtained is pTL6/JM109.
When these transformants or recombinant microorganism cells are cultured in medium normally used for E. coli, heptaprenyl diphosphate synthase (HDP synthase) accumulates in the cells. The HDP in the cells may be recovered by physical treatment in the absence or presence of a cytolytic enzyme for lysis and a conventional isolation and purification method for enzymes.
Lysozyme is preferably used as the cytolytic enzyme, and ultrasonic waves are preferably used for physical treatment. Most of the E. coli-derived protein may be removed as insoluble deposit by heating at about 55° C. For the isolation and purification of the enzyme, any or a combination of gel filtration, ion exchange, hydrophobic, reverse phase, affinity or other type of chromatography, or ultrafiltration may be available.
During the process of isolation and purification, a reagent to stabilize the desired enzyme may be combined with the treatment solution, for example, a reducing agent such as β-mercaptoethanol or dithiothreitol, protective agent against proteases, such as PMSF or BSA, or metal ion such as magnesium.
Since the above-mentioned HDP synthetase activity may be measured, for example, in the manner described hereunder, it is recommended that the isolation and purification of the enzyme be performed while confirming the activity of the enzyme using the assay reaction solution employed in f) in Example 1 hereunder.
An example of a method of preparing a DNA sequence, plasmid and transformant according to the present invention will now be described, but the scope of the invention is in no way restricted to this example.
The experiment was carried out basically in accordance with Molecular Cloning, DNA Cloning and the Takara Shuzo Catalog, mentioned previously. Most of the enzymes used were purchased from Takara Shuzo. The Bacillus stearothermophilus used was the known bacterium stored at the American Type Culture Collection (ATCC). Strain ATCC 10149 was used for this experiment.
a) Preparation of Chromosomal DNA of Bacillus stearothermophilus
Culturing was performed in LB medium (1% tryptone, 0.5% yeast extract, 1% NaCl) at 55° C., and the cells were collected. After suspension in a lysis buffer, lysozyme (chicken albumen-derived, product of Sigma Co.) was added to 10 mg/ml. After lysis, 1/10 volume of 1M Tris•HCl (pH 8.0), 1/10 volume of 10% SDS and 1/50 volume of 5 M NaCl were added. Proteinase K (product of Sigma Co.) was added to 10 mg/ml, and the mixture was heated to 50° C.
An equivalent of phenol was added and the mixture stirred and centrifuged to remove the protein. The supernatant was taken with a wide-mouthed pipette into a beaker, and after a 2.5-fold amount of ethanol was gently layered thereon the chromosomal DNA was wound up on a glass rod. After dissolution in TE (10 mM Tris•HCl (pH 8.0), 1 mM EDTA), the DNA was treated with RNaseA (product of Sigma Co.), Proteinase K and phenol, a 2.5-fold amount of ethanol was gently layered thereon and the chromosomal DNA was wound up on a glass rod. After washing with 70% ethanol, it was dissolved in TE and used in the following experiment.
b) Acquisition of pCR64
DNA primers P1 (Sequence No. 4 (SEQ ID NO.4)), P2 (Sequence No. 5 (SEQ ID NO.5)), P4 (Sequence No. 6 (SEQ ID NO.6)), P6 (Sequence No. 7 (SEQ ID NO.7)), P8 (Sequence No. 8 (SEQ ID NO.8)), P9 (Sequence No. 9 (SEQ ID NO.9)), P10 (Sequence No. 10 (SEQ ID NO.10)), P11 (Sequence No. 11 (SEQ ID NO.11)), P12 (Sequence No. 12 (SEQ ID NO.12) and P13 (Sequence No. 13 (SEQ ID NO.13)) were prepared based on the heretofore known conserved regions of the amino acid sequence of prenyl transferase.
The chromosomal DNA was subjected to partial digestion with Sau3AI, and the PCR (polymerase chain reaction) was conducted with combinations of synthetic DNA P1 and P4, P1 and P6, P1 and P8, P2 and P4, P2 and P6, P2 and P8, P9 and P11, P9 and P4, P9 and P6, P9 and P8, P9 and P13, P1 and P11, P2 and P11, P12 and P4, P12 and P6, P12 and P8, P12 and P13, P1 and P13, P2 and P13, P10 and P4, P10 and p6, P10 and P8, and P10 and P13.
The PCR product of the P10 and P8 combination was linked with the HincII digestion product of plasmid pUC118 (purchased from Takara Shuzo) using T4DNA ligase, and E. coli JM109 was transformed. Plasmids were prepared by the alkali SDS method, and the DNA sequences of 27 clones were analyzed with an Applied Biosystems 373A fluorescent DNA sequencer. One of the sequences was referred as pCR64.
TABLE 1 ______________________________________ (Composition of PCR reaction solution) Template DNA 1 μg 10 × Amplitaq Buffer 10 μ1 dNTPs mixture solution (1.25 mM each) 16 μ1 Primer 1 100 pmol Primer 2 100 pmol Taq polymerase adjusted to 100 μl with H.sub.2 O 2 units (PCR reaction conditions) 94° C., 30 secs ↓ 50° C., 30 secs × 35 cycles ↓ 72° C., 1 min ↓ 72° C., 7 mins ↓ 4° C. ______________________________________
c) Cloning of Surrounding Region With pCR64 as Probe
c-1) A DNA fragment consisting of an approximately 500 bp pCR64 digestion product by restriction endonucleases KpnI and HindIII was labelled with DIG using a DIG DNA labeling kit (purchased from BOEHRINGER MANNHEIM). The instructions in the kit manual were followed.
c-2) Preparation of Library
The chromosomal DNA was digested with restriction endonuclease AccI, and upon Southern hybridization using the probe from c-1), a band was detected in the position of about 3 kbp. Here, the DNA fragment of about 3 kbp was isolated by agarose gel electrophoresis and treated with T4 DNA polymerase. These were linked with the SmaI digestion product of plasmid pUC18 using T4 DNA ligase, and E. coli JM109 was transformed.
c-3) Screening
The library prepared in c-2) was screened with the probe prepared in c-1). Detection was made using a DIG DNA detection kit (purchased from BOEHRINGER MANNHEIM) and plasmid pAC2 was obtained. The instructions in the kit manual were followed. DNA sequence of the inserted gene of about 2.5 kbp was analyzed with an Applied Biosystems 373A fluorescent sequencer.
d) Isolation of pPR2
The gene library of c-2) was subjected to PCR using a synthetic DNA primer P64-4 (Sequence No. 14 (SEQ ID NO.14)) prepared based on the DNA sequence obtained in c-3) and M13 Primer RV (purchased from Takara Shuzo). The amplification product was inserted into pT7 Blue T-Vector (purchased from Novagen) to obtain pPR2.
e) Linking of pAC2 and pPR2
DNA fragments of about 1 kbp and 5 kbp as BamHI digestion products of pAC2 and pPR2, respectively, were ligated to obtain pTL6.
f) Measurement of Isoprenoid Synthetase Activity
The E. coli JM105 transformed with pTL6 was cultured overnight in 50 ml of LB medium containing 50 μg/ml of ampicillin, and the cells were collected. These were suspended in 4 ml of lysis buffer and disrupted with ultrasonic waves. Heating was performed at 55° C. for 1 hour to inactivate the E. coli-derived prenyl transferase, and the E. coli-derived denatured protein was removed by centrifugation and the supernatant was used for the assay. The assay reaction mixture was allowed to react for 1 hour or 14 hours at 55° C. The reaction mixture was extracted with 1-butanol, and the radioactivity was measured using a liquid scintillation counter.
TABLE 2 ______________________________________ (Composition of lysis buffer) Tris.HCl (pH 7.7) 50 mM EDTA 1 mM β-Mercaptoethanol 10 mM PMSF 0.1 mM (Composition of assay reaction solution (total volume: 1 ml)) Tris.HCl (pH 8.5) 50 mM MgCl.sub.2 25 mM NH.sub.4 Cl 50 mM β-Mercaptoethanol 50 mM (all-E)-farnesyl diphosphate 25 nmoles [1-.sup.14 C]Isopentenyl diphosphate 25 nmoles (product of Amersham Col., corresponding to approx. 5.5 × 10.sup.4 dpm) Cell-free extract 500 μl ______________________________________
The 1-butanol extract obtained from the above-mentioned reaction of JM105 carrying pTL6 was hydrolyzed and analyzed by thin-layer chromatography (TLC). As a result, the produced isoprenoid was identified as heptaprenyl diphosphate, thus showing that pTL6 contains the gene for heptaprenyl diphosphate synthetase (FIG. 2). Furthermore, upon investigating the specificity to allylic substrate primers in the assay system described hereunder (Table 3), particular enzyme activity was found with (all-E) farnesyl diphosphate and (all-E) geranylgeranyl diphosphate, whereas dimethylallyl diphosphate, geranyl diphosphate, (2Z, 6E)-farnesyl diphosphate, (2Z, 6E, 10E) geranylgeranyl diphosphate and (2Z, 6E, 10E, 14E) farnesylgeranyl diphosphate were not satisfactory substrates (Table 4).
TABLE 3 ______________________________________ (Composition of assay reaction solution (total volume: 1 ml)) ______________________________________ Tris.HCl (pH 8.5) 50 mM MgCl.sub.2 25 mM NH.sub.4 Cl 50 mM β-Mercaptoethanol 50 mM Allylic substrate 2.5 nmoles [1-.sup.14 C]Isopentenyl diphosphate 0.92 nmoles (product of Amersham Col., corresponding to approx. 1.1 × 10.sup.5 dpm) Cell-free extract 500 μl ______________________________________
TABLE 4 ______________________________________ Substrate specificity of HDP synthetase derived from DNA sequence of the present invention Enzyme Substrate activity (dpm) ______________________________________ Dimethylallyl diphosphate 324 Geranyl diphosphate 381 (all-E) Farnesyl diphosphate 4163 (2Z, 6E) Farnesyl diphosphate 323 (all-E) Geranylgeranyl diphosphate 1514 (2Z, 6E, 10E) Geranylgeranyl diphosphate 648 (all-E) Farnesylgeranyl diphosphate 728 (2Z, 6E, 10E, 14E) Farnesylgeranyl 281 diphosphate ______________________________________
E. coli normally has no heptaprenyl transferases or prenyl transferase with activity at 55° C. E. coli transformed with pTL6 is able to synthesize heptaprenyl diphosphate. Also, the fact that the activity is present at 55° C. indicates that the Bacillus stearothermophilus-derived prenyl transferase encoded by pTL6 is highly thermostable. This also shows that the recombinant is useful for producing stable heptaprenyl diphosphate.
g) Preparation of pTL6 Deletion Mutants and Identification of HDP Synthetase Gene
pTL6 had a gene insert of about 3 kbp, which contained three ORFs. Upon cleavage of pTL6 with restriction endonuclease and preparation of plasmid pTLD9 by deletion of ORFI, plasmid pTLD17 by deletion of OFRII and plasmid pTLD7 by deletion of ORFIII, and measurement of the isoprenoid-synthetase activities, activity was found for pTL6, pTLD9 and pTLD17. 1-Butanol extracts of reaction products of pTL6 and pTLD17 were hydrolyzed and analyzed by TLC, and the produced isoprenoid was confirmed to be heptaprenyl diphosphate.
TABLE 5 ______________________________________ HDP synthetase activities derived from DNA sequences of the present invention (Radioactivity of 1-butanol extracts expressed in dpm units) Cell-free extract solution Enzyme activity (dpm) ______________________________________ E. coli JM105 0 E. coli JM105/pT7Blue T-Vector 0 E. coli JM105/pTL6 750 E. coli JM105/pTLD9 16 E. coli JM105/pTLD17 129(*) E. coli JM105/pTLD7 0 ______________________________________ * = 14 hour reaction
According to the present invention there are provided DNA sequences coding for heptaprenyl diphosphate synthetase enzyme of Bacillus stearothermophilus origin.. Recombinant microorganisms, obtained by incorporating the DNA sequences into expression vectors which are then used to transform appropriate E. coli strains, produce safe substances with heptaprenyl diphosphate synthetase activity and heptaprenyl diphosphate.
This effect is achieved by preparing the above-mentioned DNA sequences from chromosomes of Bacillus stearothermophilus, which is not so far taught in scientific literature.
__________________________________________________________________________ # SEQUENCE LISTING - - - - (1) GENERAL INFORMATION: - - (iii) NUMBER OF SEQUENCES: 14 - - - - (2) INFORMATION FOR SEQ ID NO: 1: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 663 bas - #e pairs (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: double (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Genomic DNA - - (vi) ORIGINAL SOURCE: (A) ORGANISM: Bacillus - # stearothermophilus - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #1: - - ATG CTC GAT GGC GCT TCA ACG GCG CCG AGT GA - #G GCG GAG CCG TGC ATC 48 Met Leu Asp Gly Ala Ser Thr Ala Pro Ser Gl - #u Ala Glu Arg Cys Ile 5 - # 10 - # 15 - - ATC GCC ATG ATG CTC ATG CAG ATC GCC CTT GA - #T ACC CAC GAT GAG GTG 96 Ile Ala Met Met Leu Met Gln Ile Ala Leu As - #p Thr His Asp Glu Val 20 - # 25 - # 30 - - ACA GAT GAC GGC GGC GAC TTG CGG GCG CGG CA - #G CTT GTC GTC CTG GCC 144 Thr Asp Asp Gly Gly Asp Leu Arg Ala Arg Gl - #n Leu Val Val Leu Ala 35 - # 40 - # 45 - - GGC GAC TTG TAC AGC GGG CTG TAC TAT GAG TT - #G TTG GCG CGT TCG GGC 192 Gly Asp Leu Tyr Ser Gly Leu Tyr Tyr Glu Le - #u Leu Ala Arg Ser Gly 50 - # 55 - # 60 - - GAA ACG GCG CTC ATC CGC TCG TTC GCC GAG GC - #G GTC CGC GAT ATT AAC 240 Glu Thr Ala Leu Ile Arg Ser Phe Ala Glu Al - #a Val Arg Asp Ile Asn 65 - #70 - #75 - #80 - - GAG CAA AAA GTG CGG CTT TAC GAA AAA AAA GT - #A GAG CGG ATC GAG TCG 288 Glu Gln Lys Val Arg Leu Tyr Glu Lys Lys Va - #l Glu Arg Ile Glu Ser 85 - # 90 - # 95 - - TTG TTT GCG GCG GTC GGC ACG ATC GAA TCG GC - #G TTG CTT GTC AAG CTC 336 Leu Phe Ala Ala Val Gly Thr Ile Glu Ser Al - #a Leu Leu Val Lys Leu 100 - # 105 - # 110 - - GCC GAC CGC ATG GCG GCG CCG CAG TGG GGG CA - #G TTT GCC TAT TCG TAT 384 Ala Asp Arg Met Ala Ala Pro Gln Trp Gly Gl - #n Phe Ala Tyr Ser Tyr 115 - # 120 - # 125 - - TTG CTG ATG CGG CGC CTG CTG CTC GAG CAG GA - #A GCG TTC ATC CGC ACG 432 Leu Leu Met Arg Arg Leu Leu Leu Glu Gln Gl - #u Ala Phe Ile Arg Thr 130 - # 135 - # 140 - - GGA GCT TCG GTG CTC TTT GAG CAA ATG GCG CA - #A ATC GCG TTC CCG CGC 480 Gly Ala Ser Val Leu Phe Glu Gln Met Ala Gl - #n Ile Ala Phe Pro Arg 145 1 - #50 1 - #55 1 - #60 - - GCG GAA ACG TTG ACG AAA GAG CAA AAG CGG CA - #T TTG CTC CGC TTT TGC 528 Ala Glu Thr Leu Thr Lys Glu Gln Lys Arg Hi - #s Leu Leu Arg Phe Cys 165 - # 170 - # 175 - - CGC CGC TAT ATC GAC GGC TGC CGG GAG GCG CT - #G TTT GCG GCG AAA CTG 576 Arg Arg Tyr Ile Asp Gly Cys Arg Glu Ala Le - #u Phe Ala Ala Lys Leu 180 - # 185 - # 190 - - CCG GTC AAC GGC CTG CTG CAG CTC CGC GTG GC - #C GTG CTT TCC GGC GGG 624 Pro Val Asn Gly Leu Leu Gln Leu Arg Val Al - #a Val Leu Ser Gly Gly 195 - # 200 - # 205 - - TTT CAA GCC ATC GCC AAA AAG ACG GTG GAA GA - #A GGG TAG - # 663 Phe Gln Ala Ile Ala Lys Lys Thr Val Glu Gl - #u Gly 210 - # 215 - # 220 - - - - (2) INFORMATION FOR SEQ ID NO:2: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 705 bas - #e pairs (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: double (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Genomic DNA - - (vi) ORIGINAL SOURCE: (A) ORGANISM: Bacillus - # stearothermophilus - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #2: - - ATG CGT CAA TCG AAA GAA GAG CGA GTC CAT CG - #C GTA TTT GAA AAC ATT 48 Met Arg Gln Ser Lys Glu Glu Arg Val His Ar - #g Val Phe Glu Asn Ile 5 - # 10 - # 15 - - TCT GCG CAT TAT GAC CGG ATG AAC TCC GTC AT - #C AGC TTC CGC CGC CAC 96 Ser Ala His Tyr Asp Arg Met Asn Ser Val Il - #e Ser Phe Arg Arg His 20 - # 25 - # 30 - - TTG AAG TGG CGC AAA GAC GTG ATG CGG CGG AT - #G AAT GTG CAA AAA GGC 144 Leu Lys Trp Arg Lys Asp Val Met Arg Arg Me - #t Asn Val Gln Lys Gly 35 - # 40 - # 45 - - AAA AAA GCG CTC GAT GTG TGC TGT GGG ACG GC - #T GAC TGG ACG ATC GCC 192 Lys Lys Ala Leu Asp Val Cys Cys Gly Thr Al - #a Asp Trp Thr Ile Ala 50 - # 55 - # 60 - - TTG GCG GAG GCG GTC GGT CCG GAA GGG AAA GT - #G TAC GGC CTT GAT TTC 240 Leu Ala Glu Ala Val Gly Pro Glu Gly Lys Va - #l Tyr Gly Leu Asp Phe 65 - #70 - #75 - #80 - - AGC GAA AAC ATG CTG AAA GTC GGC GAA CAG AA - #G GTA AAA GCG CGC GGG 288 Ser Glu Asn Met Leu Lys Val Gly Glu Gln Ly - #s Val Lys Ala Arg Gly 85 - # 90 - # 95 - - TTG CAT AAT GTG AAG CTC ATT CAC GGC AAT GC - #G ATG CAG CTG CCG TTT 336 Leu His Asn Val Lys Leu Ile His Gly Asn Al - #a Met Gln Leu Pro Phe 100 - # 105 - # 110 - - CCT GAC AAT TCG TTC GAT TAT GTG ACG ATC GG - #C TTC GGT TTG CGC AAC 384 Pro Asp Asn Ser Phe Asp Tyr Val Thr Ile Gl - #y Phe Gly Leu Arg Asn 115 - # 120 - # 125 - - GTC CCT GAC TAT ATG ACC GTG CTT AAG GAA AT - #G CAC CGG GTG ACG AAG 432 Val Pro Asp Tyr Met Thr Val Leu Lys Glu Me - #t His Arg Val Thr Lys 130 - # 135 - # 140 - - CCG GGC GGC ATA ACC GTC TGC CTG GAA ACG TC - #G CAG CCG ACG CTG TTC 480 Pro Gly Gly Ile Thr Val Cys Leu Glu Thr Se - #r Gln Pro Thr Leu Phe 145 1 - #50 1 - #55 1 - #60 - - GGG TTT CGC CAG CTT TAC TAT TTT TAC TTC CG - #G TTT ATT ATG CCG CTG 528 Gly Phe Arg Gln Leu Tyr Tyr Phe Tyr Phe Ar - #g Phe Ile Met Pro Leu 165 - # 170 - # 175 - - TTT GGC AAG CTG CTG GCG AAA AGC TAT GAG GA - #G TAC TCG TGG CTG CAG 576 Phe Gly Lys Leu Leu Ala Lys Ser Tyr Glu Gl - #u Tyr Ser Trp Leu Gln 180 - # 185 - # 190 - - GAA TCG GCG CGC GAG TTT CCG GGG CGG GAC GA - #G CTG GCC GAG ATC TTC 624 Glu Ser Ala Arg Glu Phe Pro Gly Arg Asp Gl - #u Leu Ala Glu Met Phe 195 - # 200 - # 205 - - CGC GCC GCC GGT TTT GTC GAT GTC GAG GTC AA - #A CCG TAC ACG TTT GGC 672 Arg Ala Ala Gly Phe Val Asp Val Glu Val Ly - #s Pro Tyr Thr Phe Gly 210 - # 215 - # 220 - - GTG GCG GCG ATG CAC TTG GGC TAT AAA CGG TG - #A - # 705 Val Ala Ala Met His Leu Gly Tyr Lys Arg 225 2 - #30 - - - - (2) INFORMATION FOR SEQ ID NO:3: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 972 bas - #e pairs (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: double (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Genomic DNA - - (vi) ORIGINAL SOURCE: (A) ORGANISM: Bacillus - # stearothermophilus - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #3: - - GTG AAC AAC ATG AAG TTA AAG GCG ATG TAT TC - #G TTT TTA AGC GAT GAT 48 Val Asn Asn Met Lys Leu Lys Ala Met Tyr Se - #r Phe Leu Ser Asp Asp 5 - # 10 - # 15 - - TTA GCG GCG GTC GAA GAG GAG CTT GAG CGG GC - #G GTT CAG TCG GAA TAC 96 Leu Ala Ala Val Glu Glu Glu Leu Glu Arg Al - #a Val Gln Ser Glu Tyr 20 - # 25 - # 30 - - GGG CCG CTT GGG GAA GCG GCG CTC CAT CTG TT - #G CAG GCG GGC GGA AAG 144 Gly Pro Leu Gly Glu Ala Ala Leu His Leu Le - #u Gln Ala Gly Gly Lys 35 - # 40 - # 45 - - CGG ATC CGT CCC GTT TTT GTC TTG CTT GCC GC - #C CGC TTC GGC CAA TAT 192 Arg Ile Arg Pro Val Phe Val Leu Leu Ala Al - #a Arg Phe Gly Gln Tyr 50 - # 55 - # 60 - - GAC CTT GAG CGG ATG AAG CAT GTT GCC GTT GC - #G CTC GAG CTC ATT CAT 240 Asp Leu Glu Arg Met Lys His Val Ala Val Al - #a Leu Glu Leu Ile His 65 - #70 - #75 - #80 - - ATG GCT TCG CTC GTC CAC GAC GAT GTG ATC GA - #C GAC GCC GAT TTG CGC 288 Met Ala Ser Leu Val His Asp Asp Val Ile As - #p Asp Ala Asp Leu Arg 85 - # 90 - # 95 - - CGC GGC CGG CCG ACG ATC AAG GCG AAA TGG AG - #C AAC GCC TTC GCC ATG 336 Arg Gly Arg Pro Thr Ile Lys Ala Lys Trp Se - #r Asn Arg Phe Ala Met 100 - # 105 - # 110 - - TAC ACA GGG GAT TAT TTG TTT GCC CGC TCG CT - #C GAA CGG ATG GCG GAG 384 Tyr Thr Gly Asp Tyr Leu Phe Ala Arg Ser Le - #u Glu Arg Met Ala Glu 115 - # 120 - # 125 - - CTC GGC AAC CCG CGC GCC CAT CAA GTG TTG GC - #G AAA ACG ATC GTG GAA 432 Leu Gly Asn Pro Arg Ala His Gln Val Leu Al - #a Lys Thr Ile Val Glu 130 - # 135 - # 140 - - GTG TGC CGC GGG GAA ATT GAG CAA ATT AAA GA - #C AAG TAC CGG TTT GAT 480 Val Cys Arg Gly Glu Ile Glu Gln Ile Lys As - #p Lys Tyr Arg Phe Asp 145 1 - #50 1 - #55 1 - #60 - - CAG CCG CTG CGC ACG TAT TTG CGG CGC ATC CG - #T CGG AAA ACG GCG CTG 528 Gln Pro Leu Arg Thr Tyr Leu Arg Arg Ile Ar - #g Arg Lys Thr Ala Leu 165 - # 170 - # 175 - - CTC ATC GCC GCG AGC TGC CAG CTT GGC GCC CT - #C GCT GCC GGC GCG CCG 576 Leu Ile Ala Ala Ser Cys Gln Leu Gly Ala Le - #u Ala Ala Gly Ala Pro 180 - # 185 - # 190 - - GAG CCG ATT GTG AAG CGG CTG TAC TGG TTC GG - #C CAT TAT GTC GGC ATG 624 Glu Pro Ile Val Lys Arg Leu Tyr Trp Phe Gl - #y His Tyr Val Gly Met 195 - # 200 - # 205 - - TCG TTT CAA ATT ACC GAC GAC ATT CTC GAT TT - #C ACT GGG ACG GAG GAA 672 Ser Phe Gln Ile Thr Asp Asp Ile Leu Asp Ph - #e Thr Gly Thr GLu Glu 210 - # 215 - # 220 - - CAG CTC GGC AAA CCG GCC GGA AGC GAC TTG CT - #A CAA GGA AAC GTC ACC 720 Gln Leu Gly Lys Pro Ala Gly Ser Asp Leu Le - #u Gln Gly Asn Val Thr 225 2 - #30 2 - #35 2 - #40 - - CTT CCT GTG CTG TAT GCC TTG AGC GAT GAG CG - #G GTG AAG GCG GCC ATT 768 Leu Pro Val Leu Tyr Ala Leu Ser Asp Glu Ar - #g Val Lys Ala Ala Ile 245 - # 250 - # 255 - - GCA GCT GTC GGT CCG GAA ACG GAC GTT GCG GA - #A ATG GCG GCG GTC ATT 816 Ala Ala Val Gly Pro Glu Thr Asp Val Ala Gl - #u Met Ala Ala Val Ile 260 - # 265 - # 270 - - TCC GCC ATT AAG CGG ACG GAC GCC ATT GAG CG - #G TCG TAT GCG TTA AGC 864 Ser Ala Ile Lys Arg Thr Asp Ala Ile Glu Ar - #g Ser Tyr Ala Leu Ser 275 - # 280 - # 285 - - GAC CGT TAC CTT GAC AAG GCG CTT CAC CTT CT - #T GAC GGA CTG CCG ATG 912 Asp Arg Tyr Leu Asp Lys Ala Leu His Leu Le - #u Asp Gly Leu Pro Met 290 - # 295 - # 300 - - AAT GAG GCG CGC GGC CTG TTG CGC GAC CTC GC - #C CTT TAC ATC GGG AAA 960 Asn Glu Ala Arg Gly Leu Leu Arg Asp Leu Al - #a Leu Tyr Ile Gly Lys 305 3 - #10 3 - #15 3 - #20 - - AGG GAT TAT TAA - # - # - # 972 Arg Asp Tyr - - - - (2) INFORMATION FOR SEQ ID NO:4: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 30 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #4: - - CTNATHCAYG AYGAYYTNCC NTCNATGGAC - # - # 30 - - - - (2) INFORMATION FOR SEQ ID NO:5: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 24 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #5: - - GAYAAYGAYG AYYTNMGNMG NGGC - # - # 24 - - - - (2) INFORMATION FOR SEQ ID NO:6: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 27 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #6: - - ATCRTCNCKD ATYTGRAANG CNARNCC - # - # 27 - - - - (2) INFORMATION FOR SEQ ID NO:7: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 27 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #7: - - ATCNARDATR TCRTCNCKDA TYTGRAA - # - # 27 - - - - (2) INFORMATION FOR SEQ ID NO:8: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 21 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #8: - - GTCRCTNCCN ACNGGYTTNC C - # - # - #21 - - - - (2) INFORMATION FOR SEQ ID NO:9: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 20 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #9: - - YTNGARGCNG GNGGNAARMG - # - # - # 20 - - - - (2) INFORMATION FOR SEQ ID NO:10: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 20 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #10: - - TAYWSNYTNA THCAYGAYGA - # - # - # 20 - - - - (2) INFORMATION FOR SEQ ID NO:11: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 21 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #11: - - YTCCATRTCN GCNGCYTGNC C - # - # - #21 - - (2) INFORMATION FOR SEQ ID NO:12: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 26 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #12: - - YTNGARTAYA THCAYMGNCA YAARAC - # - # 26 - - - - (2) INFORMATION FOR SEQ ID NO:13: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 18 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #13: - - DATRTCNARD ATRTCRTC - # - # - # 18 - - - - (2) INFORMATION FOR SEQ ID NO:14: - - (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 20 (B) TYPE: nucleic a - #cid (C) STRANDEDNESS: single (D) TOPOLOGY: linear - - (ii) MOLECULE TYPE: Synthetic DNA - - (xi) SEQUENCE DESCRIPTION: SEQ ID NO: - #14: - - GATCACATCG TCGTGGACGA - # - # - # 20 __________________________________________________________________________
Claims (6)
1. A protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity, which comprises a peptide encoded by nucleotides 1-660 of SEQ ID NO. 1, a peptide encoded by nucleotides 1-702 of SEQ ID NO. 2, and a peptide encoded by nucleotides 1-969 of SEQ ID NO. 3.
2. A peptide of Bacillus stearothermophilus origin encoded by nucleotides 1-660 of SEQ ID NO. 1.
3. A peptide of Bacillus stearothermophilus origin encoded by nucleotides 1-969 of SEQ ID NO. 3.
4. A protein of Bacillus stearothermophilus origin with heptaprenyl diphosphate synthetase activity, which comprises a peptide encoded by nucleotides 1-66 of SEQ ID NO. 1, and a peptide encoded by nucleotides 1-969 of SEQ ID NO. 3.
5. A protein of Bacillus stearothermophilus origin, which comprises a peptide encoded by nucleotides 1-660 of SEQ ID NO. 1, and a peptide encoded by nucleotides 1-7 of SEQ ID NO. 2.
6. A protein of Bacillus stearothermophilus origin, which comprises a peptide encoded by nucleotides 1-702 of SEQ ID NO. 2, and a peptide encoded by nucleotides 1-9 of SEQ ID NO. 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/035,754 US6020177A (en) | 1994-07-29 | 1998-03-06 | Heptaprenyl diphosphate-synthetase |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6-179336 | 1994-07-29 | ||
JP06179336A JP3087575B2 (en) | 1994-07-29 | 1994-07-29 | Heptaprenyl diphosphate synthase and DNA encoding the same |
US08/506,404 US5773265A (en) | 1994-07-29 | 1995-07-24 | DNA encoding heptaprenyl diphosphate synthetase |
US09/035,754 US6020177A (en) | 1994-07-29 | 1998-03-06 | Heptaprenyl diphosphate-synthetase |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US08/506,404 Division US5773265A (en) | 1994-07-29 | 1995-07-24 | DNA encoding heptaprenyl diphosphate synthetase |
Publications (1)
Publication Number | Publication Date |
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US6020177A true US6020177A (en) | 2000-02-01 |
Family
ID=16064063
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/506,404 Expired - Lifetime US5773265A (en) | 1994-07-29 | 1995-07-24 | DNA encoding heptaprenyl diphosphate synthetase |
US09/035,754 Expired - Lifetime US6020177A (en) | 1994-07-29 | 1998-03-06 | Heptaprenyl diphosphate-synthetase |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/506,404 Expired - Lifetime US5773265A (en) | 1994-07-29 | 1995-07-24 | DNA encoding heptaprenyl diphosphate synthetase |
Country Status (4)
Country | Link |
---|---|
US (2) | US5773265A (en) |
EP (1) | EP0699761B1 (en) |
JP (1) | JP3087575B2 (en) |
DE (1) | DE69501069T2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7851199B2 (en) | 2005-03-18 | 2010-12-14 | Microbia, Inc. | Production of carotenoids in oleaginous yeast and fungi |
US8618355B2 (en) | 2008-03-17 | 2013-12-31 | National Research Council Of Canada | Aromatic prenyltransferase from hop |
US8691555B2 (en) | 2006-09-28 | 2014-04-08 | Dsm Ip Assests B.V. | Production of carotenoids in oleaginous yeast and fungi |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3120684B2 (en) * | 1995-02-14 | 2000-12-25 | トヨタ自動車株式会社 | Mutant farnesyl diphosphate synthase that synthesizes geranylgeranyl diphosphate and DNA encoding the same |
US6174715B1 (en) * | 1996-06-14 | 2001-01-16 | Toyota Jidosha Kabushiki Kaisha | Prenyl diphosphate synthetase genes |
JP3379344B2 (en) | 1996-07-24 | 2003-02-24 | トヨタ自動車株式会社 | Farnesyl diphosphate synthase |
US6984223B2 (en) | 2001-11-13 | 2006-01-10 | Becton, Dickinson And Company | Needle safety device |
CN110028549B (en) * | 2016-07-07 | 2022-08-05 | 华东理工大学 | Antihypertensive peptide and antihypertensive protein and application thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0674000A2 (en) * | 1994-03-24 | 1995-09-27 | Toyota Jidosha Kabushiki Kaisha | Geranylgeranyl diphosphate synthase and DNA coding therefor |
-
1994
- 1994-07-29 JP JP06179336A patent/JP3087575B2/en not_active Expired - Lifetime
-
1995
- 1995-07-24 US US08/506,404 patent/US5773265A/en not_active Expired - Lifetime
- 1995-07-26 DE DE69501069T patent/DE69501069T2/en not_active Expired - Fee Related
- 1995-07-26 EP EP95111764A patent/EP0699761B1/en not_active Expired - Lifetime
-
1998
- 1998-03-06 US US09/035,754 patent/US6020177A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0674000A2 (en) * | 1994-03-24 | 1995-09-27 | Toyota Jidosha Kabushiki Kaisha | Geranylgeranyl diphosphate synthase and DNA coding therefor |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7851199B2 (en) | 2005-03-18 | 2010-12-14 | Microbia, Inc. | Production of carotenoids in oleaginous yeast and fungi |
US8288149B2 (en) | 2005-03-18 | 2012-10-16 | Dsm Ip Assets B.V. | Production of carotenoids in oleaginous yeast and fungi |
US9909130B2 (en) | 2005-03-18 | 2018-03-06 | Dsm Ip Assets B.V. | Production of carotenoids in oleaginous yeast and fungi |
US8691555B2 (en) | 2006-09-28 | 2014-04-08 | Dsm Ip Assests B.V. | Production of carotenoids in oleaginous yeast and fungi |
US9297031B2 (en) | 2006-09-28 | 2016-03-29 | Dsm Ip Assets B.V. | Production of carotenoids in oleaginous yeast and fungi |
US8618355B2 (en) | 2008-03-17 | 2013-12-31 | National Research Council Of Canada | Aromatic prenyltransferase from hop |
Also Published As
Publication number | Publication date |
---|---|
JP3087575B2 (en) | 2000-09-11 |
JPH0838168A (en) | 1996-02-13 |
EP0699761B1 (en) | 1997-11-19 |
EP0699761A2 (en) | 1996-03-06 |
EP0699761A3 (en) | 1996-05-08 |
US5773265A (en) | 1998-06-30 |
DE69501069T2 (en) | 1998-04-09 |
DE69501069D1 (en) | 1998-01-02 |
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